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germanium booster


Vintage germanium boost using old USSR germanium transistors. Push your tube amp into sonic heaven! Increase overdrive & sustain with classic germanium tone. Three switchable modes of boost:

- Treble Boost to capture classic 70’s tones
- Mid Boost to cut through the mix
- Bass Boost for BIG bottom end

Power from external adapter 9V.

Manual .pdf

clean booster


High voltage clean booster - preamplifier:

  • Gain control from 0 dB to 30 dB
  • Voltage converter to 24 Volts inside
  • Tone control switch: "normal" - "treble"
  • True bypass
  • Full metal design

manual .pdf

Detailed Review from GuitarEffectsWorld.com :

" You power the HV Boost with a regular 9 volt power supply like any other pedal out there but thanks to some internal voltage up-scaling it boosts the output to 24v. This little internal wizardry makes this little pedal LOUD!"